Use these options to specify how the date range returns results. "Exact" means that the start and end dates of descriptions returned must fall entirely within the date range entered. "Overlapping" means that any description whose start or end dates touch or overlap the target date range will be returned.

The documents of the SHAPE historical office center around the production of an Annual History, known as the SHAPE History. Documents from this series include the history itself and the background material (footnotes) used in its production.